resilience 2

自动隔离损坏插件，让 DSH 在坏插件面前照常启动：坏插件被禁用、其余插件正常装配，提供隔离管理与一键恢复 UI（deepseek-harness plugin that quarantines broken plugins so the service keeps booting, with status tools, a one-click restore panel and auto patch adaptation）

Weak-network adaptor for the DeepSeek Harness: transparent long-backoff model-stream retries (10-min cap), local response replay cache, heartbeat auto-reconnect, degraded-mode token economy, and a bilingual (zh/en) settings page. / 弱网适配插件：模型流长退避重试、本地响应缓存、